MYPROGRAMMINGLAB WITH PEARSON ETEXT
8th Edition
ISBN: 9780134225340
Author: Deitel
Publisher: PEARSON
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Chapter 10, Problem 10.10E
(Right Shifting Integers) Write a
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Given the following Extended-BNF grammar of the basic mathematical expressions:
Show the derivation steps for the expression: ( 2 + 3 ) * 6 – 20 / ( 3 + 1 )
Draw the parsing tree of this expression.
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Whentheuserenters!!,themostrecentcommandinthehistoryisexecuted.In the example above, if the user entered the command:
Osh> !!
The ‘ls -l’ command should be executed and echoed on user’s screen. The command should also be placed in the history buffer as the next command.
Whentheuserentersasingle!followedbyanintegerN,theNthcommandin the history is executed. In the example above, if the user entered the command:
Osh> ! 3
The ‘ps’ command should be executed and echoed on the user’s screen. The command should also be placed in the history buffer as the next command.
Error handling:
The program should also manage basic error handling. For example, if there are no commands in the history, entering !! should result in a message “No commands in history.” Also, if there is no command corresponding to the number entered with the single !, the program should output "No such command in history."
Activity No.
Activity
Time (weeks)
Immediate Predecessors
1
Requirements collection
3
2
Requirements structuring
4
1
3
Process analysis
3
2
4
Data analysis
3
2
5
Logical design
50
3,4
6
Physical design
5
5
7
Implementation
6
6
c. Using the information from part b, prepare a network diagram. Identify the critical path.
Chapter 10 Solutions
MYPROGRAMMINGLAB WITH PEARSON ETEXT
Ch. 10 - Prob. 10.5ECh. 10 - Given the following structure and variable...Ch. 10 - Prob. 10.7ECh. 10 - (Using Unions) Create union integer with members...Ch. 10 - (Using Unions) Create union floatingPoint with...Ch. 10 - (Right Shifting Integers) Write a program that...Ch. 10 - (Left Shifting Integers) Left shifting an unsigned...Ch. 10 - (Packing Characters into an Integer) The...Ch. 10 - (Unpacking Characters from an Integer) Using the...Ch. 10 - (Reversing the Order of an Integers Bits) Write a...
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